Obx light weight crank pulley

[raul_gianino]

Looking into ordering a obx crank pulley , what size belt will I need ? Any recommendations ?


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[i12drivemyMP5]

Is it just lightened or is it also underdrive?

 

[raul_gianino]

It is both light weight and an underdrive, so before I make the purchase I want to be sure on what belt I should run on and size


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[i12drivemyMP5]

Well, I has Unorthodox Racing UDP and the belts are K050446 and K040355 which are 5 rib 446mm long and 4 rib 355mm long. I don't know the exact diameter of my UR pulley compared to the OBX tho. Can't say for sure they are same diameter.

 

[raul_gianino]

The pulley you have is an under drive as well ?

I guess I just have to do more research. I was hoping someone using the obx can give me an insight.

Thanks


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[fuadmsp]

i have a light weight stock size pulley I'm selling its brand 505zoom racing... same size as stock pulley just way lighter.... i have to and this one is a spare now since i sold my second msprotege

 

[raul_gianino]

How much does it weigh ? Pm with pic and info


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[i12drivemyMP5]

The pulley you have is an under drive as well ?

Yes, mine is underdrive and lightened...........